Introduction Have you ever wondered what it takes to build good IoT product? How much effort does it take to create useful solution which will work safely and serve many clients? It can take a lot of time to do it. Fortunately there are some services like Google Cloud IoT or Amazon AWS IoT which try to help developers overcome all of common obstacles and make the work much easier. Today we will talk more closely about Amazon services. The main goal of their platform which was launched in 2015 is to offer tools that will help to spend more time on product development and not on common tasks that could be easily automated.